Name: Neodymium Symbol: Nd Atomic Number: 60 Atomic Mass: 144.24 amu Melting Point: 1010.0 °C (1283.15 K, 1850.0 °F) Boiling Point: 3127.0 °C (3400.15 K, 5660.6 °F) Number of Protons/Electrons: 60 Number of Neutrons: 84 Classification: Lanthanide series
Rare Earth Metals Most common isotope: 124Nd Crystal Structure: Hexagonal Density @ 293 K: 7.007 g/cm3 Color: silvery Phase at Room Temperature: Solid Estimated Crustal Abundance: 4.15×101 milligrams per kilogram Number of Stable Isotopes: 5 Description: A Silvery rare earth metal that tarnishes in air and reacts slowly with cold water, but reacts rapidly in hot water. Date of Discovery: 1925 Discoverer: C.F. Aver von Welsbach Name Origin: From the Greek words neos (new) and didymos (twin) Uses: coloring glass and ceramics, infrared radiation filtering Obtained From: electrolysis of salts Reactants: Neodymium occurs with other rare earth metals in monazite bastnasite and allanite. It must first be seperated from these.
It reacts with most nonmetals at high temperatures: niobium reacts with flurine at room temperature, with chlorine and hydrogen at 200 °C and with nitrogen at 400 °C, giving products that are frequently interstitial and nonstoichiometric.The metal begins to oxide in air at 200 C and is resistant to corrosion by fused alkalis and by acids, including aqua regia,hydrochloric, nitric and phosphoric acid. Niobium is attacked by hydrofluoric acid and hydrofluoric/nitric acid mixtures.
Chief ores of Neodymium are monazite and bastnasite. Annual world wide production is around 7,300 tons. Neodymium is used in ceramics to color glazes, in alloys for permanent magnets, for special lens with praseodymium. Its also used to produce bright purple glass and special glass that filters infrared radiation. Primary mining areas are USA, Brazil, India, Sri Lanka and Australi.
Name: Neodymium
Symbol: Nd
Atomic Number: 60
Atomic Mass: 144.24 amu
Melting Point: 1010.0 °C (1283.15 K, 1850.0 °F)
Boiling Point: 3127.0 °C (3400.15 K, 5660.6 °F)
Number of Protons/Electrons: 60
Number of Neutrons: 84
Classification: Lanthanide series
Rare Earth Metals
Most common isotope: 124Nd
Crystal Structure: Hexagonal
Density @ 293 K: 7.007 g/cm3
Color: silvery
Phase at Room Temperature: Solid
Estimated Crustal Abundance: 4.15×101 milligrams per kilogram
Number of Stable Isotopes: 5
Description: A Silvery rare earth metal that tarnishes in air and reacts slowly with cold water, but reacts rapidly in hot water.
Date of Discovery: 1925
Discoverer: C.F. Aver von Welsbach
Name Origin: From the Greek words neos (new) and didymos (twin)
Uses: coloring glass and ceramics, infrared radiation filtering
Obtained From: electrolysis of salts
Reactants: Neodymium occurs with other rare earth metals in monazite bastnasite and allanite. It must first be seperated from these.
It reacts with most nonmetals at high temperatures: niobium reacts with flurine at room temperature, with chlorine and hydrogen at 200 °C and with nitrogen at 400 °C, giving products that are frequently interstitial and nonstoichiometric.The metal begins to oxide in air at 200 C and is resistant to corrosion by fused alkalis and by acids, including aqua regia,hydrochloric, nitric and phosphoric acid. Niobium is attacked by hydrofluoric acid and hydrofluoric/nitric acid mixtures.
Chief ores of Neodymium are monazite and bastnasite. Annual world wide production is around 7,300 tons. Neodymium is used in ceramics to color glazes, in alloys for permanent magnets, for special lens with praseodymium. Its also used to produce bright purple glass and special glass that filters infrared radiation. Primary mining areas are USA, Brazil, India, Sri Lanka and Australi.
http://environmentalchemistry.com/yogi/periodic/Nb.html
http://www.chemicalelements.com/elements/nb.html
http://www.webelements.com/neodymium/